A new Cisco ISE infrastructure is being built to provide network access control. If Cisco Discovery Protocol is used, what information is being gathered in relation to profiling with Cisco ISE?
Answer: B – device ID
SISE ebook:
When querying a NAD, ISE looks for interface data (such as which interface or which VLAN), session data (if the interface is Ethernet), and Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP) data (if these protocols are enabled). CDP and LLDP data can be very useful in identifying a device type by its registered capabilities and similar attributes.
Cisco ISE uses !!! SNMP !!! to query NAD for CDP and LLDP data.
Device sensor config for CDP usage:
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Create a list for CDP and configure the device name, version type, capabilities type, and platform type, as demonstrated here:
CAT9300(config)#device-sensor filter-list cdp list <cdp_list_name>
CAT9300(config-sensor-cdplist)#tlv name device-name
CAT9300(config-sensor-cdplist)#tlv name platform-type
CAT9300(config-sensor-cdplist)#tlv name version-type
CAT9300(config-sensor-cdplist)#tlv name capabilities-type
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